Cavitating jet

Advantages of Cavitation S Peening^TM

Peened surface is extremely smooth (see Fig.3).
Shots are not necessary, i.e. Shotless peening.
It is easy to peen bottom of gear teeth and/or narrow region (see Fig.4).
There is no thermal effect to material surface.
Expensive plunger pumps are not required, since the impact force of cavitation bubble was used.
It is easy to control the peening area. pressure, nozzle size and injection time are same.)

　　　　　　　　Not peened

　　　　　　　　Cavitation S Peening^TM

　　　　　　　　Shot peening

Fig. 3 Peened surface of alumen strip

Cavitation S Peening^TM 　　Shot peening

Fig. 4 Cross sectional view of peened area

REFERENCES

H.Soyama, Increase of Ability of Water Jet by Using Cavitation Impacts and Its Application to

Peening of Material, Journal of Jet Flow Engineering, Vol.16, No.3, 1999, pp.22-28.

Cavitation S Peening^TM (Top page)